import java.util.*;

public class Main {
    private static Scanner sc = new Scanner(System.in);
    public static void main(String[] args) throws Exception {
        int a = sc.nextInt();
        int b = sc.nextInt();
        
        for (int i = a;i <= b;i++) {
            if (isContain(i) || isMod(i)) {
                System.out.println(i);
            }
        }
    }
    
    private static boolean isContain(int i) {
        String s = String.valueOf(i);
        return s.indexOf("3") >= 0;
    }
    
    private static boolean isMod(int i) {
        return i%3==0;
    }
}